/**
 * Copyright 2009 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package org.waveprotocol.wave.model.document.operation;


/**
 * The callback interface used by DocOp's apply method.
 */
public interface DocOpCursor extends DocInitializationCursor {
  void retain(int itemCount);
  void deleteCharacters(String chars);
  void deleteElementStart(String type, Attributes attrs);
  void deleteElementEnd();
  void replaceAttributes(Attributes oldAttrs, Attributes newAttrs);
  void updateAttributes(AttributesUpdate attrUpdate);
}
